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《Chinese Journal of Hand Surgery》 2005-03
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Treatment of mallet fingers by lengthening of central slip of the extensor apparatus

ZHUANG Jia-chuan, ZHANG Zhen-wei, LIAO Jian-wen, et al. Center of Hand Surgery and Rehabilitation, Shenzhen 518104, China  
Objective To introduce the method of central slip lengthening for management of mallet fingers, and evaluate the treatment outcome. Methods 16 cases of mallet fingers were treated with this procedure. A Z-shaped incision was made on the central slip of the extensor apparatus. The tendon was cut, self-lengthened, and re-attached by mattress suture with "5-0"tendon sutures. The central slip was lengthened for 3 mm to 5 mm. Postoperative immobilization of the finger in a plaster kept the metacarpophalangeal joint in rest position, the proximal interphalangeal joint in 30° - 40° flexion, and the distal interphalangeal joint in 10°- 15° extension for 4 weeks. Rehabilitation started after the plaster was removed. Results Postoperative follow up ranged from 4 months to 3 years, with an average of 20 months. According to Dargan criteria, the overall effective rate was 87.5%. Excellent result was obtained in 12 cases and good in 2 cases. Conclusion Lengthening of central slip of the extensor apparatus is an easy and effective method for treatment of mallet fingers.
【Fund】: :深圳市科技局科研基金资助项目(200304267)
【CateGory Index】: R687.3
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